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Stacking Frames

I went out and took some shots of Saturn, which was low on the western horizon after a hot day in Utah. None of the data was really usable, but I tried anyway.

 

I post this to demonstrate how stacking data can help, even if the source info is very noisy. By stacking frames I increase the signal-to-noise ratio, meaning that each frame has a little noise and a little info. The info will come through over and over in the same places, and the noise is always just random. When stacked, the noise cancels itself out, and the real image comes through.

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Uploaded on July 22, 2009
Taken on July 21, 2009